interjection, similar to "great Caesar's ghost" and "jumpin' Jehosaphat," this nonsense phrase can be heard in the song "Goin' Down Slow" by Howlin Wolf, and in Frank Zappa's song "Don't Eat The Yellow Snow."

sure, anyone can shout "holy shit" or "jesus fucking christ." but it takes a person of rare insight and a sense of musical history to say "great googly-moogly" without sounding infantile.